Just graduated to a travel trailer after a few years off. Started out with a tent then had a couple of pop-ups so never too complicated an abode. I'm wondering what everyone has in their basic too...
Everyone has their favorites, for me crimp connectors, crimping tool, heat shrink tubing etc., are essential for the electrical systems. A couple of strap wrenches can come in handy as well. A good assortment of wrenches, pliers, screwdrivers are standard equipment. Make sure you have all of the gear necessary to fix a flat - tire repair kit, jack, jack stand, torque wrench etc. Lots more you can add but weight and available storage space will be an issue eventually. :C